1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation. 3 * Copyright(c) 2014 6WIND S.A. 4 */ 5 6 #include <stdlib.h> 7 #include <unistd.h> 8 #include <string.h> 9 #ifndef RTE_EXEC_ENV_WINDOWS 10 #include <syslog.h> 11 #endif 12 #include <ctype.h> 13 #include <limits.h> 14 #include <errno.h> 15 #include <getopt.h> 16 #ifndef RTE_EXEC_ENV_WINDOWS 17 #include <dlfcn.h> 18 #include <libgen.h> 19 #endif 20 #include <sys/types.h> 21 #include <sys/stat.h> 22 #ifndef RTE_EXEC_ENV_WINDOWS 23 #include <dirent.h> 24 #endif 25 26 #include <rte_string_fns.h> 27 #include <rte_eal.h> 28 #include <rte_log.h> 29 #include <rte_lcore.h> 30 #include <rte_memory.h> 31 #include <rte_tailq.h> 32 #include <rte_version.h> 33 #include <rte_devargs.h> 34 #include <rte_memcpy.h> 35 #ifndef RTE_EXEC_ENV_WINDOWS 36 #include <rte_telemetry.h> 37 #endif 38 #include <rte_vect.h> 39 40 #include "eal_internal_cfg.h" 41 #include "eal_options.h" 42 #include "eal_filesystem.h" 43 #include "eal_private.h" 44 #include "eal_log.h" 45 #ifndef RTE_EXEC_ENV_WINDOWS 46 #include "eal_trace.h" 47 #endif 48 49 #define BITS_PER_HEX 4 50 #define LCORE_OPT_LST 1 51 #define LCORE_OPT_MSK 2 52 #define LCORE_OPT_MAP 3 53 54 const char 55 eal_short_options[] = 56 "a:" /* allow */ 57 "b:" /* block */ 58 "c:" /* coremask */ 59 "s:" /* service coremask */ 60 "d:" /* driver */ 61 "h" /* help */ 62 "l:" /* corelist */ 63 "S:" /* service corelist */ 64 "m:" /* memory size */ 65 "n:" /* memory channels */ 66 "r:" /* memory ranks */ 67 "v" /* version */ 68 ; 69 70 const struct option 71 eal_long_options[] = { 72 {OPT_BASE_VIRTADDR, 1, NULL, OPT_BASE_VIRTADDR_NUM }, 73 {OPT_CREATE_UIO_DEV, 0, NULL, OPT_CREATE_UIO_DEV_NUM }, 74 {OPT_FILE_PREFIX, 1, NULL, OPT_FILE_PREFIX_NUM }, 75 {OPT_HELP, 0, NULL, OPT_HELP_NUM }, 76 {OPT_HUGE_DIR, 1, NULL, OPT_HUGE_DIR_NUM }, 77 {OPT_HUGE_UNLINK, 0, NULL, OPT_HUGE_UNLINK_NUM }, 78 {OPT_IOVA_MODE, 1, NULL, OPT_IOVA_MODE_NUM }, 79 {OPT_LCORES, 1, NULL, OPT_LCORES_NUM }, 80 {OPT_LOG_LEVEL, 1, NULL, OPT_LOG_LEVEL_NUM }, 81 {OPT_TRACE, 1, NULL, OPT_TRACE_NUM }, 82 {OPT_TRACE_DIR, 1, NULL, OPT_TRACE_DIR_NUM }, 83 {OPT_TRACE_BUF_SIZE, 1, NULL, OPT_TRACE_BUF_SIZE_NUM }, 84 {OPT_TRACE_MODE, 1, NULL, OPT_TRACE_MODE_NUM }, 85 {OPT_MAIN_LCORE, 1, NULL, OPT_MAIN_LCORE_NUM }, 86 {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM}, 87 {OPT_NO_HPET, 0, NULL, OPT_NO_HPET_NUM }, 88 {OPT_NO_HUGE, 0, NULL, OPT_NO_HUGE_NUM }, 89 {OPT_NO_PCI, 0, NULL, OPT_NO_PCI_NUM }, 90 {OPT_NO_SHCONF, 0, NULL, OPT_NO_SHCONF_NUM }, 91 {OPT_IN_MEMORY, 0, NULL, OPT_IN_MEMORY_NUM }, 92 {OPT_DEV_BLOCK, 1, NULL, OPT_DEV_BLOCK_NUM }, 93 {OPT_DEV_ALLOW, 1, NULL, OPT_DEV_ALLOW_NUM }, 94 {OPT_PROC_TYPE, 1, NULL, OPT_PROC_TYPE_NUM }, 95 {OPT_SOCKET_MEM, 1, NULL, OPT_SOCKET_MEM_NUM }, 96 {OPT_SOCKET_LIMIT, 1, NULL, OPT_SOCKET_LIMIT_NUM }, 97 {OPT_SYSLOG, 1, NULL, OPT_SYSLOG_NUM }, 98 {OPT_VDEV, 1, NULL, OPT_VDEV_NUM }, 99 {OPT_VFIO_INTR, 1, NULL, OPT_VFIO_INTR_NUM }, 100 {OPT_VFIO_VF_TOKEN, 1, NULL, OPT_VFIO_VF_TOKEN_NUM }, 101 {OPT_VMWARE_TSC_MAP, 0, NULL, OPT_VMWARE_TSC_MAP_NUM }, 102 {OPT_LEGACY_MEM, 0, NULL, OPT_LEGACY_MEM_NUM }, 103 {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM}, 104 {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM}, 105 {OPT_TELEMETRY, 0, NULL, OPT_TELEMETRY_NUM }, 106 {OPT_NO_TELEMETRY, 0, NULL, OPT_NO_TELEMETRY_NUM }, 107 {OPT_FORCE_MAX_SIMD_BITWIDTH, 1, NULL, OPT_FORCE_MAX_SIMD_BITWIDTH_NUM}, 108 109 {0, 0, NULL, 0 } 110 }; 111 112 TAILQ_HEAD(shared_driver_list, shared_driver); 113 114 /* Definition for shared object drivers. */ 115 struct shared_driver { 116 TAILQ_ENTRY(shared_driver) next; 117 118 char name[PATH_MAX]; 119 void* lib_handle; 120 }; 121 122 /* List of external loadable drivers */ 123 static struct shared_driver_list solib_list = 124 TAILQ_HEAD_INITIALIZER(solib_list); 125 126 #ifndef RTE_EXEC_ENV_WINDOWS 127 /* Default path of external loadable drivers */ 128 static const char *default_solib_dir = RTE_EAL_PMD_PATH; 129 #endif 130 131 /* 132 * Stringified version of solib path used by dpdk-pmdinfo.py 133 * Note: PLEASE DO NOT ALTER THIS without making a corresponding 134 * change to usertools/dpdk-pmdinfo.py 135 */ 136 static const char dpdk_solib_path[] __rte_used = 137 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH; 138 139 TAILQ_HEAD(device_option_list, device_option); 140 141 struct device_option { 142 TAILQ_ENTRY(device_option) next; 143 144 enum rte_devtype type; 145 char arg[]; 146 }; 147 148 static struct device_option_list devopt_list = 149 TAILQ_HEAD_INITIALIZER(devopt_list); 150 151 static int main_lcore_parsed; 152 static int mem_parsed; 153 static int core_parsed; 154 155 /* Allow the application to print its usage message too if set */ 156 static rte_usage_hook_t rte_application_usage_hook; 157 158 /* Returns rte_usage_hook_t */ 159 rte_usage_hook_t 160 eal_get_application_usage_hook(void) 161 { 162 return rte_application_usage_hook; 163 } 164 165 /* Set a per-application usage message */ 166 rte_usage_hook_t 167 rte_set_application_usage_hook(rte_usage_hook_t usage_func) 168 { 169 rte_usage_hook_t old_func; 170 171 /* Will be NULL on the first call to denote the last usage routine. */ 172 old_func = rte_application_usage_hook; 173 rte_application_usage_hook = usage_func; 174 175 return old_func; 176 } 177 178 #ifndef RTE_EXEC_ENV_WINDOWS 179 static char **eal_args; 180 static char **eal_app_args; 181 182 #define EAL_PARAM_REQ "/eal/params" 183 #define EAL_APP_PARAM_REQ "/eal/app_params" 184 185 /* callback handler for telemetry library to report out EAL flags */ 186 int 187 handle_eal_info_request(const char *cmd, const char *params __rte_unused, 188 struct rte_tel_data *d) 189 { 190 char **args; 191 int used = 0; 192 int i = 0; 193 194 if (strcmp(cmd, EAL_PARAM_REQ) == 0) 195 args = eal_args; 196 else 197 args = eal_app_args; 198 199 rte_tel_data_start_array(d, RTE_TEL_STRING_VAL); 200 if (args == NULL || args[0] == NULL) 201 return 0; 202 203 for ( ; args[i] != NULL; i++) 204 used = rte_tel_data_add_array_string(d, args[i]); 205 return used; 206 } 207 208 int 209 eal_save_args(int argc, char **argv) 210 { 211 int i, j; 212 213 rte_telemetry_register_cmd(EAL_PARAM_REQ, handle_eal_info_request, 214 "Returns EAL commandline parameters used. Takes no parameters"); 215 rte_telemetry_register_cmd(EAL_APP_PARAM_REQ, handle_eal_info_request, 216 "Returns app commandline parameters used. Takes no parameters"); 217 218 /* clone argv to report out later. We overprovision, but 219 * this does not waste huge amounts of memory 220 */ 221 eal_args = calloc(argc + 1, sizeof(*eal_args)); 222 if (eal_args == NULL) 223 return -1; 224 225 for (i = 0; i < argc; i++) { 226 if (strcmp(argv[i], "--") == 0) 227 break; 228 eal_args[i] = strdup(argv[i]); 229 } 230 eal_args[i++] = NULL; /* always finish with NULL */ 231 232 /* allow reporting of any app args we know about too */ 233 if (i >= argc) 234 return 0; 235 236 eal_app_args = calloc(argc - i + 1, sizeof(*eal_args)); 237 if (eal_app_args == NULL) 238 return -1; 239 240 for (j = 0; i < argc; j++, i++) 241 eal_app_args[j] = strdup(argv[i]); 242 eal_app_args[j] = NULL; 243 244 return 0; 245 } 246 #endif 247 248 static int 249 eal_option_device_add(enum rte_devtype type, const char *optarg) 250 { 251 struct device_option *devopt; 252 size_t optlen; 253 int ret; 254 255 optlen = strlen(optarg) + 1; 256 devopt = calloc(1, sizeof(*devopt) + optlen); 257 if (devopt == NULL) { 258 RTE_LOG(ERR, EAL, "Unable to allocate device option\n"); 259 return -ENOMEM; 260 } 261 262 devopt->type = type; 263 ret = strlcpy(devopt->arg, optarg, optlen); 264 if (ret < 0) { 265 RTE_LOG(ERR, EAL, "Unable to copy device option\n"); 266 free(devopt); 267 return -EINVAL; 268 } 269 TAILQ_INSERT_TAIL(&devopt_list, devopt, next); 270 return 0; 271 } 272 273 int 274 eal_option_device_parse(void) 275 { 276 struct device_option *devopt; 277 void *tmp; 278 int ret = 0; 279 280 TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) { 281 if (ret == 0) { 282 ret = rte_devargs_add(devopt->type, devopt->arg); 283 if (ret) 284 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n", 285 devopt->arg); 286 } 287 TAILQ_REMOVE(&devopt_list, devopt, next); 288 free(devopt); 289 } 290 return ret; 291 } 292 293 const char * 294 eal_get_hugefile_prefix(void) 295 { 296 const struct internal_config *internal_conf = 297 eal_get_internal_configuration(); 298 299 if (internal_conf->hugefile_prefix != NULL) 300 return internal_conf->hugefile_prefix; 301 return HUGEFILE_PREFIX_DEFAULT; 302 } 303 304 void 305 eal_reset_internal_config(struct internal_config *internal_cfg) 306 { 307 int i; 308 309 internal_cfg->memory = 0; 310 internal_cfg->force_nrank = 0; 311 internal_cfg->force_nchannel = 0; 312 internal_cfg->hugefile_prefix = NULL; 313 internal_cfg->hugepage_dir = NULL; 314 internal_cfg->force_sockets = 0; 315 /* zero out the NUMA config */ 316 for (i = 0; i < RTE_MAX_NUMA_NODES; i++) 317 internal_cfg->socket_mem[i] = 0; 318 internal_cfg->force_socket_limits = 0; 319 /* zero out the NUMA limits config */ 320 for (i = 0; i < RTE_MAX_NUMA_NODES; i++) 321 internal_cfg->socket_limit[i] = 0; 322 /* zero out hugedir descriptors */ 323 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) { 324 memset(&internal_cfg->hugepage_info[i], 0, 325 sizeof(internal_cfg->hugepage_info[0])); 326 internal_cfg->hugepage_info[i].lock_descriptor = -1; 327 } 328 internal_cfg->base_virtaddr = 0; 329 330 #ifdef LOG_DAEMON 331 internal_cfg->syslog_facility = LOG_DAEMON; 332 #endif 333 334 /* if set to NONE, interrupt mode is determined automatically */ 335 internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE; 336 memset(internal_cfg->vfio_vf_token, 0, 337 sizeof(internal_cfg->vfio_vf_token)); 338 339 #ifdef RTE_LIBEAL_USE_HPET 340 internal_cfg->no_hpet = 0; 341 #else 342 internal_cfg->no_hpet = 1; 343 #endif 344 internal_cfg->vmware_tsc_map = 0; 345 internal_cfg->create_uio_dev = 0; 346 internal_cfg->iova_mode = RTE_IOVA_DC; 347 internal_cfg->user_mbuf_pool_ops_name = NULL; 348 CPU_ZERO(&internal_cfg->ctrl_cpuset); 349 internal_cfg->init_complete = 0; 350 internal_cfg->max_simd_bitwidth.bitwidth = RTE_VECT_DEFAULT_SIMD_BITWIDTH; 351 internal_cfg->max_simd_bitwidth.forced = 0; 352 } 353 354 static int 355 eal_plugin_add(const char *path) 356 { 357 struct shared_driver *solib; 358 359 solib = malloc(sizeof(*solib)); 360 if (solib == NULL) { 361 RTE_LOG(ERR, EAL, "malloc(solib) failed\n"); 362 return -1; 363 } 364 memset(solib, 0, sizeof(*solib)); 365 strlcpy(solib->name, path, PATH_MAX); 366 TAILQ_INSERT_TAIL(&solib_list, solib, next); 367 368 return 0; 369 } 370 371 #ifdef RTE_EXEC_ENV_WINDOWS 372 int 373 eal_plugins_init(void) 374 { 375 return 0; 376 } 377 #else 378 379 static int 380 eal_plugindir_init(const char *path) 381 { 382 DIR *d = NULL; 383 struct dirent *dent = NULL; 384 char sopath[PATH_MAX]; 385 386 if (path == NULL || *path == '\0') 387 return 0; 388 389 d = opendir(path); 390 if (d == NULL) { 391 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n", 392 path, strerror(errno)); 393 return -1; 394 } 395 396 while ((dent = readdir(d)) != NULL) { 397 struct stat sb; 398 int nlen = strnlen(dent->d_name, sizeof(dent->d_name)); 399 400 /* check if name ends in .so or .so.ABI_VERSION */ 401 if (strcmp(&dent->d_name[nlen - 3], ".so") != 0 && 402 strcmp(&dent->d_name[nlen - 4 - strlen(ABI_VERSION)], 403 ".so."ABI_VERSION) != 0) 404 continue; 405 406 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name); 407 408 /* if a regular file, add to list to load */ 409 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode))) 410 continue; 411 412 if (eal_plugin_add(sopath) == -1) 413 break; 414 } 415 416 closedir(d); 417 /* XXX this ignores failures from readdir() itself */ 418 return (dent == NULL) ? 0 : -1; 419 } 420 421 static int 422 verify_perms(const char *dirpath) 423 { 424 struct stat st; 425 426 /* if not root, check down one level first */ 427 if (strcmp(dirpath, "/") != 0) { 428 static __thread char last_dir_checked[PATH_MAX]; 429 char copy[PATH_MAX]; 430 const char *dir; 431 432 strlcpy(copy, dirpath, PATH_MAX); 433 dir = dirname(copy); 434 if (strncmp(dir, last_dir_checked, PATH_MAX) != 0) { 435 if (verify_perms(dir) != 0) 436 return -1; 437 strlcpy(last_dir_checked, dir, PATH_MAX); 438 } 439 } 440 441 /* call stat to check for permissions and ensure not world writable */ 442 if (stat(dirpath, &st) != 0) { 443 RTE_LOG(ERR, EAL, "Error with stat on %s, %s\n", 444 dirpath, strerror(errno)); 445 return -1; 446 } 447 if (st.st_mode & S_IWOTH) { 448 RTE_LOG(ERR, EAL, 449 "Error, directory path %s is world-writable and insecure\n", 450 dirpath); 451 return -1; 452 } 453 454 return 0; 455 } 456 457 static void * 458 eal_dlopen(const char *pathname) 459 { 460 void *retval = NULL; 461 char *realp = realpath(pathname, NULL); 462 463 if (realp == NULL && errno == ENOENT) { 464 /* not a full or relative path, try a load from system dirs */ 465 retval = dlopen(pathname, RTLD_NOW); 466 if (retval == NULL) 467 RTE_LOG(ERR, EAL, "%s\n", dlerror()); 468 return retval; 469 } 470 if (realp == NULL) { 471 RTE_LOG(ERR, EAL, "Error with realpath for %s, %s\n", 472 pathname, strerror(errno)); 473 goto out; 474 } 475 if (strnlen(realp, PATH_MAX) == PATH_MAX) { 476 RTE_LOG(ERR, EAL, "Error, driver path greater than PATH_MAX\n"); 477 goto out; 478 } 479 480 /* do permissions checks */ 481 if (verify_perms(realp) != 0) 482 goto out; 483 484 retval = dlopen(realp, RTLD_NOW); 485 if (retval == NULL) 486 RTE_LOG(ERR, EAL, "%s\n", dlerror()); 487 out: 488 free(realp); 489 return retval; 490 } 491 492 static int 493 is_shared_build(void) 494 { 495 #define EAL_SO "librte_eal.so" 496 char soname[32]; 497 size_t len, minlen = strlen(EAL_SO); 498 499 len = strlcpy(soname, EAL_SO"."ABI_VERSION, sizeof(soname)); 500 if (len > sizeof(soname)) { 501 RTE_LOG(ERR, EAL, "Shared lib name too long in shared build check\n"); 502 len = sizeof(soname) - 1; 503 } 504 505 while (len >= minlen) { 506 void *handle; 507 508 /* check if we have this .so loaded, if so - shared build */ 509 RTE_LOG(DEBUG, EAL, "Checking presence of .so '%s'\n", soname); 510 handle = dlopen(soname, RTLD_LAZY | RTLD_NOLOAD); 511 if (handle != NULL) { 512 RTE_LOG(INFO, EAL, "Detected shared linkage of DPDK\n"); 513 dlclose(handle); 514 return 1; 515 } 516 517 /* remove any version numbers off the end to retry */ 518 while (len-- > 0) 519 if (soname[len] == '.') { 520 soname[len] = '\0'; 521 break; 522 } 523 } 524 525 RTE_LOG(INFO, EAL, "Detected static linkage of DPDK\n"); 526 return 0; 527 } 528 529 int 530 eal_plugins_init(void) 531 { 532 struct shared_driver *solib = NULL; 533 struct stat sb; 534 535 /* If we are not statically linked, add default driver loading 536 * path if it exists as a directory. 537 * (Using dlopen with NOLOAD flag on EAL, will return NULL if the EAL 538 * shared library is not already loaded i.e. it's statically linked.) 539 */ 540 if (is_shared_build() && 541 *default_solib_dir != '\0' && 542 stat(default_solib_dir, &sb) == 0 && 543 S_ISDIR(sb.st_mode)) 544 eal_plugin_add(default_solib_dir); 545 546 TAILQ_FOREACH(solib, &solib_list, next) { 547 548 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) { 549 if (eal_plugindir_init(solib->name) == -1) { 550 RTE_LOG(ERR, EAL, 551 "Cannot init plugin directory %s\n", 552 solib->name); 553 return -1; 554 } 555 } else { 556 RTE_LOG(DEBUG, EAL, "open shared lib %s\n", 557 solib->name); 558 solib->lib_handle = eal_dlopen(solib->name); 559 if (solib->lib_handle == NULL) 560 return -1; 561 } 562 563 } 564 return 0; 565 } 566 #endif 567 568 /* 569 * Parse the coremask given as argument (hexadecimal string) and fill 570 * the global configuration (core role and core count) with the parsed 571 * value. 572 */ 573 static int xdigit2val(unsigned char c) 574 { 575 int val; 576 577 if (isdigit(c)) 578 val = c - '0'; 579 else if (isupper(c)) 580 val = c - 'A' + 10; 581 else 582 val = c - 'a' + 10; 583 return val; 584 } 585 586 static int 587 eal_parse_service_coremask(const char *coremask) 588 { 589 struct rte_config *cfg = rte_eal_get_configuration(); 590 int i, j, idx = 0; 591 unsigned int count = 0; 592 char c; 593 int val; 594 uint32_t taken_lcore_count = 0; 595 596 if (coremask == NULL) 597 return -1; 598 /* Remove all blank characters ahead and after . 599 * Remove 0x/0X if exists. 600 */ 601 while (isblank(*coremask)) 602 coremask++; 603 if (coremask[0] == '0' && ((coremask[1] == 'x') 604 || (coremask[1] == 'X'))) 605 coremask += 2; 606 i = strlen(coremask); 607 while ((i > 0) && isblank(coremask[i - 1])) 608 i--; 609 610 if (i == 0) 611 return -1; 612 613 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) { 614 c = coremask[i]; 615 if (isxdigit(c) == 0) { 616 /* invalid characters */ 617 return -1; 618 } 619 val = xdigit2val(c); 620 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; 621 j++, idx++) { 622 if ((1 << j) & val) { 623 /* handle main lcore already parsed */ 624 uint32_t lcore = idx; 625 if (main_lcore_parsed && 626 cfg->main_lcore == lcore) { 627 RTE_LOG(ERR, EAL, 628 "lcore %u is main lcore, cannot use as service core\n", 629 idx); 630 return -1; 631 } 632 633 if (eal_cpu_detected(idx) == 0) { 634 RTE_LOG(ERR, EAL, 635 "lcore %u unavailable\n", idx); 636 return -1; 637 } 638 639 if (cfg->lcore_role[idx] == ROLE_RTE) 640 taken_lcore_count++; 641 642 lcore_config[idx].core_role = ROLE_SERVICE; 643 count++; 644 } 645 } 646 } 647 648 for (; i >= 0; i--) 649 if (coremask[i] != '0') 650 return -1; 651 652 for (; idx < RTE_MAX_LCORE; idx++) 653 lcore_config[idx].core_index = -1; 654 655 if (count == 0) 656 return -1; 657 658 if (core_parsed && taken_lcore_count != count) { 659 RTE_LOG(WARNING, EAL, 660 "Not all service cores are in the coremask. " 661 "Please ensure -c or -l includes service cores\n"); 662 } 663 664 cfg->service_lcore_count = count; 665 return 0; 666 } 667 668 static int 669 eal_service_cores_parsed(void) 670 { 671 int idx; 672 for (idx = 0; idx < RTE_MAX_LCORE; idx++) { 673 if (lcore_config[idx].core_role == ROLE_SERVICE) 674 return 1; 675 } 676 return 0; 677 } 678 679 static int 680 update_lcore_config(int *cores) 681 { 682 struct rte_config *cfg = rte_eal_get_configuration(); 683 unsigned int count = 0; 684 unsigned int i; 685 int ret = 0; 686 687 for (i = 0; i < RTE_MAX_LCORE; i++) { 688 if (cores[i] != -1) { 689 if (eal_cpu_detected(i) == 0) { 690 RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i); 691 ret = -1; 692 continue; 693 } 694 cfg->lcore_role[i] = ROLE_RTE; 695 count++; 696 } else { 697 cfg->lcore_role[i] = ROLE_OFF; 698 } 699 lcore_config[i].core_index = cores[i]; 700 } 701 if (!ret) 702 cfg->lcore_count = count; 703 return ret; 704 } 705 706 static int 707 eal_parse_coremask(const char *coremask, int *cores) 708 { 709 unsigned count = 0; 710 int i, j, idx; 711 int val; 712 char c; 713 714 for (idx = 0; idx < RTE_MAX_LCORE; idx++) 715 cores[idx] = -1; 716 idx = 0; 717 718 /* Remove all blank characters ahead and after . 719 * Remove 0x/0X if exists. 720 */ 721 while (isblank(*coremask)) 722 coremask++; 723 if (coremask[0] == '0' && ((coremask[1] == 'x') 724 || (coremask[1] == 'X'))) 725 coremask += 2; 726 i = strlen(coremask); 727 while ((i > 0) && isblank(coremask[i - 1])) 728 i--; 729 if (i == 0) 730 return -1; 731 732 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) { 733 c = coremask[i]; 734 if (isxdigit(c) == 0) { 735 /* invalid characters */ 736 return -1; 737 } 738 val = xdigit2val(c); 739 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++) 740 { 741 if ((1 << j) & val) { 742 cores[idx] = count; 743 count++; 744 } 745 } 746 } 747 for (; i >= 0; i--) 748 if (coremask[i] != '0') 749 return -1; 750 if (count == 0) 751 return -1; 752 return 0; 753 } 754 755 static int 756 eal_parse_service_corelist(const char *corelist) 757 { 758 struct rte_config *cfg = rte_eal_get_configuration(); 759 int i; 760 unsigned count = 0; 761 char *end = NULL; 762 uint32_t min, max, idx; 763 uint32_t taken_lcore_count = 0; 764 765 if (corelist == NULL) 766 return -1; 767 768 /* Remove all blank characters ahead and after */ 769 while (isblank(*corelist)) 770 corelist++; 771 i = strlen(corelist); 772 while ((i > 0) && isblank(corelist[i - 1])) 773 i--; 774 775 /* Get list of cores */ 776 min = RTE_MAX_LCORE; 777 do { 778 while (isblank(*corelist)) 779 corelist++; 780 if (*corelist == '\0') 781 return -1; 782 errno = 0; 783 idx = strtoul(corelist, &end, 10); 784 if (errno || end == NULL) 785 return -1; 786 if (idx >= RTE_MAX_LCORE) 787 return -1; 788 while (isblank(*end)) 789 end++; 790 if (*end == '-') { 791 min = idx; 792 } else if ((*end == ',') || (*end == '\0')) { 793 max = idx; 794 if (min == RTE_MAX_LCORE) 795 min = idx; 796 for (idx = min; idx <= max; idx++) { 797 if (cfg->lcore_role[idx] != ROLE_SERVICE) { 798 /* handle main lcore already parsed */ 799 uint32_t lcore = idx; 800 if (cfg->main_lcore == lcore && 801 main_lcore_parsed) { 802 RTE_LOG(ERR, EAL, 803 "Error: lcore %u is main lcore, cannot use as service core\n", 804 idx); 805 return -1; 806 } 807 if (cfg->lcore_role[idx] == ROLE_RTE) 808 taken_lcore_count++; 809 810 lcore_config[idx].core_role = 811 ROLE_SERVICE; 812 count++; 813 } 814 } 815 min = RTE_MAX_LCORE; 816 } else 817 return -1; 818 corelist = end + 1; 819 } while (*end != '\0'); 820 821 if (count == 0) 822 return -1; 823 824 if (core_parsed && taken_lcore_count != count) { 825 RTE_LOG(WARNING, EAL, 826 "Not all service cores were in the coremask. " 827 "Please ensure -c or -l includes service cores\n"); 828 } 829 830 return 0; 831 } 832 833 static int 834 eal_parse_corelist(const char *corelist, int *cores) 835 { 836 unsigned count = 0; 837 char *end = NULL; 838 int min, max; 839 int idx; 840 841 for (idx = 0; idx < RTE_MAX_LCORE; idx++) 842 cores[idx] = -1; 843 844 /* Remove all blank characters ahead */ 845 while (isblank(*corelist)) 846 corelist++; 847 848 /* Get list of cores */ 849 min = RTE_MAX_LCORE; 850 do { 851 while (isblank(*corelist)) 852 corelist++; 853 if (*corelist == '\0') 854 return -1; 855 errno = 0; 856 idx = strtol(corelist, &end, 10); 857 if (errno || end == NULL) 858 return -1; 859 if (idx < 0 || idx >= RTE_MAX_LCORE) 860 return -1; 861 while (isblank(*end)) 862 end++; 863 if (*end == '-') { 864 min = idx; 865 } else if ((*end == ',') || (*end == '\0')) { 866 max = idx; 867 if (min == RTE_MAX_LCORE) 868 min = idx; 869 for (idx = min; idx <= max; idx++) { 870 if (cores[idx] == -1) { 871 cores[idx] = count; 872 count++; 873 } 874 } 875 min = RTE_MAX_LCORE; 876 } else 877 return -1; 878 corelist = end + 1; 879 } while (*end != '\0'); 880 881 if (count == 0) 882 return -1; 883 return 0; 884 } 885 886 /* Changes the lcore id of the main thread */ 887 static int 888 eal_parse_main_lcore(const char *arg) 889 { 890 char *parsing_end; 891 struct rte_config *cfg = rte_eal_get_configuration(); 892 893 errno = 0; 894 cfg->main_lcore = (uint32_t) strtol(arg, &parsing_end, 0); 895 if (errno || parsing_end[0] != 0) 896 return -1; 897 if (cfg->main_lcore >= RTE_MAX_LCORE) 898 return -1; 899 main_lcore_parsed = 1; 900 901 /* ensure main core is not used as service core */ 902 if (lcore_config[cfg->main_lcore].core_role == ROLE_SERVICE) { 903 RTE_LOG(ERR, EAL, 904 "Error: Main lcore is used as a service core\n"); 905 return -1; 906 } 907 908 return 0; 909 } 910 911 /* 912 * Parse elem, the elem could be single number/range or '(' ')' group 913 * 1) A single number elem, it's just a simple digit. e.g. 9 914 * 2) A single range elem, two digits with a '-' between. e.g. 2-6 915 * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6) 916 * Within group elem, '-' used for a range separator; 917 * ',' used for a single number. 918 */ 919 static int 920 eal_parse_set(const char *input, rte_cpuset_t *set) 921 { 922 unsigned idx; 923 const char *str = input; 924 char *end = NULL; 925 unsigned min, max; 926 927 CPU_ZERO(set); 928 929 while (isblank(*str)) 930 str++; 931 932 /* only digit or left bracket is qualify for start point */ 933 if ((!isdigit(*str) && *str != '(') || *str == '\0') 934 return -1; 935 936 /* process single number or single range of number */ 937 if (*str != '(') { 938 errno = 0; 939 idx = strtoul(str, &end, 10); 940 if (errno || end == NULL || idx >= CPU_SETSIZE) 941 return -1; 942 else { 943 while (isblank(*end)) 944 end++; 945 946 min = idx; 947 max = idx; 948 if (*end == '-') { 949 /* process single <number>-<number> */ 950 end++; 951 while (isblank(*end)) 952 end++; 953 if (!isdigit(*end)) 954 return -1; 955 956 errno = 0; 957 idx = strtoul(end, &end, 10); 958 if (errno || end == NULL || idx >= CPU_SETSIZE) 959 return -1; 960 max = idx; 961 while (isblank(*end)) 962 end++; 963 if (*end != ',' && *end != '\0') 964 return -1; 965 } 966 967 if (*end != ',' && *end != '\0' && 968 *end != '@') 969 return -1; 970 971 for (idx = RTE_MIN(min, max); 972 idx <= RTE_MAX(min, max); idx++) 973 CPU_SET(idx, set); 974 975 return end - input; 976 } 977 } 978 979 /* process set within bracket */ 980 str++; 981 while (isblank(*str)) 982 str++; 983 if (*str == '\0') 984 return -1; 985 986 min = RTE_MAX_LCORE; 987 do { 988 989 /* go ahead to the first digit */ 990 while (isblank(*str)) 991 str++; 992 if (!isdigit(*str)) 993 return -1; 994 995 /* get the digit value */ 996 errno = 0; 997 idx = strtoul(str, &end, 10); 998 if (errno || end == NULL || idx >= CPU_SETSIZE) 999 return -1; 1000 1001 /* go ahead to separator '-',',' and ')' */ 1002 while (isblank(*end)) 1003 end++; 1004 if (*end == '-') { 1005 if (min == RTE_MAX_LCORE) 1006 min = idx; 1007 else /* avoid continuous '-' */ 1008 return -1; 1009 } else if ((*end == ',') || (*end == ')')) { 1010 max = idx; 1011 if (min == RTE_MAX_LCORE) 1012 min = idx; 1013 for (idx = RTE_MIN(min, max); 1014 idx <= RTE_MAX(min, max); idx++) 1015 CPU_SET(idx, set); 1016 1017 min = RTE_MAX_LCORE; 1018 } else 1019 return -1; 1020 1021 str = end + 1; 1022 } while (*end != '\0' && *end != ')'); 1023 1024 /* 1025 * to avoid failure that tail blank makes end character check fail 1026 * in eal_parse_lcores( ) 1027 */ 1028 while (isblank(*str)) 1029 str++; 1030 1031 return str - input; 1032 } 1033 1034 static int 1035 check_cpuset(rte_cpuset_t *set) 1036 { 1037 unsigned int idx; 1038 1039 for (idx = 0; idx < CPU_SETSIZE; idx++) { 1040 if (!CPU_ISSET(idx, set)) 1041 continue; 1042 1043 if (eal_cpu_detected(idx) == 0) { 1044 RTE_LOG(ERR, EAL, "core %u " 1045 "unavailable\n", idx); 1046 return -1; 1047 } 1048 } 1049 return 0; 1050 } 1051 1052 /* 1053 * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]' 1054 * lcores, cpus could be a single digit/range or a group. 1055 * '(' and ')' are necessary if it's a group. 1056 * If not supply '@cpus', the value of cpus uses the same as lcores. 1057 * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below 1058 * lcore 0 runs on cpuset 0x41 (cpu 0,6) 1059 * lcore 1 runs on cpuset 0x2 (cpu 1) 1060 * lcore 2 runs on cpuset 0xe0 (cpu 5,6,7) 1061 * lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2) 1062 * lcore 6 runs on cpuset 0x41 (cpu 0,6) 1063 * lcore 7 runs on cpuset 0x80 (cpu 7) 1064 * lcore 8 runs on cpuset 0x100 (cpu 8) 1065 */ 1066 static int 1067 eal_parse_lcores(const char *lcores) 1068 { 1069 struct rte_config *cfg = rte_eal_get_configuration(); 1070 rte_cpuset_t lcore_set; 1071 unsigned int set_count; 1072 unsigned idx = 0; 1073 unsigned count = 0; 1074 const char *lcore_start = NULL; 1075 const char *end = NULL; 1076 int offset; 1077 rte_cpuset_t cpuset; 1078 int lflags; 1079 int ret = -1; 1080 1081 if (lcores == NULL) 1082 return -1; 1083 1084 /* Remove all blank characters ahead and after */ 1085 while (isblank(*lcores)) 1086 lcores++; 1087 1088 CPU_ZERO(&cpuset); 1089 1090 /* Reset lcore config */ 1091 for (idx = 0; idx < RTE_MAX_LCORE; idx++) { 1092 cfg->lcore_role[idx] = ROLE_OFF; 1093 lcore_config[idx].core_index = -1; 1094 CPU_ZERO(&lcore_config[idx].cpuset); 1095 } 1096 1097 /* Get list of cores */ 1098 do { 1099 while (isblank(*lcores)) 1100 lcores++; 1101 if (*lcores == '\0') 1102 goto err; 1103 1104 lflags = 0; 1105 1106 /* record lcore_set start point */ 1107 lcore_start = lcores; 1108 1109 /* go across a complete bracket */ 1110 if (*lcore_start == '(') { 1111 lcores += strcspn(lcores, ")"); 1112 if (*lcores++ == '\0') 1113 goto err; 1114 } 1115 1116 /* scan the separator '@', ','(next) or '\0'(finish) */ 1117 lcores += strcspn(lcores, "@,"); 1118 1119 if (*lcores == '@') { 1120 /* explicit assign cpuset and update the end cursor */ 1121 offset = eal_parse_set(lcores + 1, &cpuset); 1122 if (offset < 0) 1123 goto err; 1124 end = lcores + 1 + offset; 1125 } else { /* ',' or '\0' */ 1126 /* haven't given cpuset, current loop done */ 1127 end = lcores; 1128 1129 /* go back to check <number>-<number> */ 1130 offset = strcspn(lcore_start, "(-"); 1131 if (offset < (end - lcore_start) && 1132 *(lcore_start + offset) != '(') 1133 lflags = 1; 1134 } 1135 1136 if (*end != ',' && *end != '\0') 1137 goto err; 1138 1139 /* parse lcore_set from start point */ 1140 if (eal_parse_set(lcore_start, &lcore_set) < 0) 1141 goto err; 1142 1143 /* without '@', by default using lcore_set as cpuset */ 1144 if (*lcores != '@') 1145 rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset)); 1146 1147 set_count = CPU_COUNT(&lcore_set); 1148 /* start to update lcore_set */ 1149 for (idx = 0; idx < RTE_MAX_LCORE; idx++) { 1150 if (!CPU_ISSET(idx, &lcore_set)) 1151 continue; 1152 set_count--; 1153 1154 if (cfg->lcore_role[idx] != ROLE_RTE) { 1155 lcore_config[idx].core_index = count; 1156 cfg->lcore_role[idx] = ROLE_RTE; 1157 count++; 1158 } 1159 1160 if (lflags) { 1161 CPU_ZERO(&cpuset); 1162 CPU_SET(idx, &cpuset); 1163 } 1164 1165 if (check_cpuset(&cpuset) < 0) 1166 goto err; 1167 rte_memcpy(&lcore_config[idx].cpuset, &cpuset, 1168 sizeof(rte_cpuset_t)); 1169 } 1170 1171 /* some cores from the lcore_set can't be handled by EAL */ 1172 if (set_count != 0) 1173 goto err; 1174 1175 lcores = end + 1; 1176 } while (*end != '\0'); 1177 1178 if (count == 0) 1179 goto err; 1180 1181 cfg->lcore_count = count; 1182 ret = 0; 1183 1184 err: 1185 1186 return ret; 1187 } 1188 1189 #ifndef RTE_EXEC_ENV_WINDOWS 1190 static int 1191 eal_parse_syslog(const char *facility, struct internal_config *conf) 1192 { 1193 int i; 1194 static const struct { 1195 const char *name; 1196 int value; 1197 } map[] = { 1198 { "auth", LOG_AUTH }, 1199 { "cron", LOG_CRON }, 1200 { "daemon", LOG_DAEMON }, 1201 { "ftp", LOG_FTP }, 1202 { "kern", LOG_KERN }, 1203 { "lpr", LOG_LPR }, 1204 { "mail", LOG_MAIL }, 1205 { "news", LOG_NEWS }, 1206 { "syslog", LOG_SYSLOG }, 1207 { "user", LOG_USER }, 1208 { "uucp", LOG_UUCP }, 1209 { "local0", LOG_LOCAL0 }, 1210 { "local1", LOG_LOCAL1 }, 1211 { "local2", LOG_LOCAL2 }, 1212 { "local3", LOG_LOCAL3 }, 1213 { "local4", LOG_LOCAL4 }, 1214 { "local5", LOG_LOCAL5 }, 1215 { "local6", LOG_LOCAL6 }, 1216 { "local7", LOG_LOCAL7 }, 1217 { NULL, 0 } 1218 }; 1219 1220 for (i = 0; map[i].name; i++) { 1221 if (!strcmp(facility, map[i].name)) { 1222 conf->syslog_facility = map[i].value; 1223 return 0; 1224 } 1225 } 1226 return -1; 1227 } 1228 #endif 1229 1230 static void 1231 eal_log_usage(void) 1232 { 1233 unsigned int level; 1234 1235 printf("Log type is a pattern matching items of this list" 1236 " (plugins may be missing):\n"); 1237 rte_log_list_types(stdout, "\t"); 1238 printf("\n"); 1239 printf("Syntax using globbing pattern: "); 1240 printf("--"OPT_LOG_LEVEL" pattern:level\n"); 1241 printf("Syntax using regular expression: "); 1242 printf("--"OPT_LOG_LEVEL" regexp,level\n"); 1243 printf("Syntax for the global level: "); 1244 printf("--"OPT_LOG_LEVEL" level\n"); 1245 printf("Logs are emitted if allowed by both global and specific levels.\n"); 1246 printf("\n"); 1247 printf("Log level can be a number or the first letters of its name:\n"); 1248 for (level = 1; level <= RTE_LOG_MAX; level++) 1249 printf("\t%d %s\n", level, eal_log_level2str(level)); 1250 } 1251 1252 static int 1253 eal_parse_log_priority(const char *level) 1254 { 1255 size_t len = strlen(level); 1256 unsigned long tmp; 1257 char *end; 1258 unsigned int i; 1259 1260 if (len == 0) 1261 return -1; 1262 1263 /* look for named values, skip 0 which is not a valid level */ 1264 for (i = 1; i <= RTE_LOG_MAX; i++) { 1265 if (strncmp(eal_log_level2str(i), level, len) == 0) 1266 return i; 1267 } 1268 1269 /* not a string, maybe it is numeric */ 1270 errno = 0; 1271 tmp = strtoul(level, &end, 0); 1272 1273 /* check for errors */ 1274 if (errno != 0 || end == NULL || *end != '\0' || 1275 tmp >= UINT32_MAX) 1276 return -1; 1277 1278 return tmp; 1279 } 1280 1281 static int 1282 eal_parse_log_level(const char *arg) 1283 { 1284 const char *pattern = NULL; 1285 const char *regex = NULL; 1286 char *str, *level; 1287 int priority; 1288 1289 if (strcmp(arg, "help") == 0) { 1290 eal_log_usage(); 1291 exit(EXIT_SUCCESS); 1292 } 1293 1294 str = strdup(arg); 1295 if (str == NULL) 1296 return -1; 1297 1298 if ((level = strchr(str, ','))) { 1299 regex = str; 1300 *level++ = '\0'; 1301 } else if ((level = strchr(str, ':'))) { 1302 pattern = str; 1303 *level++ = '\0'; 1304 } else { 1305 level = str; 1306 } 1307 1308 priority = eal_parse_log_priority(level); 1309 if (priority <= 0) { 1310 fprintf(stderr, "Invalid log level: %s\n", level); 1311 goto fail; 1312 } 1313 if (priority > (int)RTE_LOG_MAX) { 1314 fprintf(stderr, "Log level %d higher than maximum (%d)\n", 1315 priority, RTE_LOG_MAX); 1316 priority = RTE_LOG_MAX; 1317 } 1318 1319 if (regex) { 1320 if (rte_log_set_level_regexp(regex, priority) < 0) { 1321 fprintf(stderr, "cannot set log level %s,%d\n", 1322 regex, priority); 1323 goto fail; 1324 } 1325 if (eal_log_save_regexp(regex, priority) < 0) 1326 goto fail; 1327 } else if (pattern) { 1328 if (rte_log_set_level_pattern(pattern, priority) < 0) { 1329 fprintf(stderr, "cannot set log level %s:%d\n", 1330 pattern, priority); 1331 goto fail; 1332 } 1333 if (eal_log_save_pattern(pattern, priority) < 0) 1334 goto fail; 1335 } else { 1336 rte_log_set_global_level(priority); 1337 } 1338 1339 free(str); 1340 return 0; 1341 1342 fail: 1343 free(str); 1344 return -1; 1345 } 1346 1347 static enum rte_proc_type_t 1348 eal_parse_proc_type(const char *arg) 1349 { 1350 if (strncasecmp(arg, "primary", sizeof("primary")) == 0) 1351 return RTE_PROC_PRIMARY; 1352 if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0) 1353 return RTE_PROC_SECONDARY; 1354 if (strncasecmp(arg, "auto", sizeof("auto")) == 0) 1355 return RTE_PROC_AUTO; 1356 1357 return RTE_PROC_INVALID; 1358 } 1359 1360 static int 1361 eal_parse_iova_mode(const char *name) 1362 { 1363 int mode; 1364 struct internal_config *internal_conf = 1365 eal_get_internal_configuration(); 1366 1367 if (name == NULL) 1368 return -1; 1369 1370 if (!strcmp("pa", name)) 1371 mode = RTE_IOVA_PA; 1372 else if (!strcmp("va", name)) 1373 mode = RTE_IOVA_VA; 1374 else 1375 return -1; 1376 1377 internal_conf->iova_mode = mode; 1378 return 0; 1379 } 1380 1381 static int 1382 eal_parse_simd_bitwidth(const char *arg) 1383 { 1384 char *end; 1385 unsigned long bitwidth; 1386 int ret; 1387 struct internal_config *internal_conf = 1388 eal_get_internal_configuration(); 1389 1390 if (arg == NULL || arg[0] == '\0') 1391 return -1; 1392 1393 errno = 0; 1394 bitwidth = strtoul(arg, &end, 0); 1395 1396 /* check for errors */ 1397 if (errno != 0 || end == NULL || *end != '\0' || bitwidth > RTE_VECT_SIMD_MAX) 1398 return -1; 1399 1400 if (bitwidth == 0) 1401 bitwidth = (unsigned long) RTE_VECT_SIMD_MAX; 1402 ret = rte_vect_set_max_simd_bitwidth(bitwidth); 1403 if (ret < 0) 1404 return -1; 1405 internal_conf->max_simd_bitwidth.forced = 1; 1406 return 0; 1407 } 1408 1409 static int 1410 eal_parse_base_virtaddr(const char *arg) 1411 { 1412 char *end; 1413 uint64_t addr; 1414 struct internal_config *internal_conf = 1415 eal_get_internal_configuration(); 1416 1417 errno = 0; 1418 addr = strtoull(arg, &end, 16); 1419 1420 /* check for errors */ 1421 if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0')) 1422 return -1; 1423 1424 /* make sure we don't exceed 32-bit boundary on 32-bit target */ 1425 #ifndef RTE_ARCH_64 1426 if (addr >= UINTPTR_MAX) 1427 return -1; 1428 #endif 1429 1430 /* align the addr on 16M boundary, 16MB is the minimum huge page 1431 * size on IBM Power architecture. If the addr is aligned to 16MB, 1432 * it can align to 2MB for x86. So this alignment can also be used 1433 * on x86 and other architectures. 1434 */ 1435 internal_conf->base_virtaddr = 1436 RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M); 1437 1438 return 0; 1439 } 1440 1441 /* caller is responsible for freeing the returned string */ 1442 static char * 1443 available_cores(void) 1444 { 1445 char *str = NULL; 1446 int previous; 1447 int sequence; 1448 char *tmp; 1449 int idx; 1450 1451 /* find the first available cpu */ 1452 for (idx = 0; idx < RTE_MAX_LCORE; idx++) { 1453 if (eal_cpu_detected(idx) == 0) 1454 continue; 1455 break; 1456 } 1457 if (idx >= RTE_MAX_LCORE) 1458 return NULL; 1459 1460 /* first sequence */ 1461 if (asprintf(&str, "%d", idx) < 0) 1462 return NULL; 1463 previous = idx; 1464 sequence = 0; 1465 1466 for (idx++ ; idx < RTE_MAX_LCORE; idx++) { 1467 if (eal_cpu_detected(idx) == 0) 1468 continue; 1469 1470 if (idx == previous + 1) { 1471 previous = idx; 1472 sequence = 1; 1473 continue; 1474 } 1475 1476 /* finish current sequence */ 1477 if (sequence) { 1478 if (asprintf(&tmp, "%s-%d", str, previous) < 0) { 1479 free(str); 1480 return NULL; 1481 } 1482 free(str); 1483 str = tmp; 1484 } 1485 1486 /* new sequence */ 1487 if (asprintf(&tmp, "%s,%d", str, idx) < 0) { 1488 free(str); 1489 return NULL; 1490 } 1491 free(str); 1492 str = tmp; 1493 previous = idx; 1494 sequence = 0; 1495 } 1496 1497 /* finish last sequence */ 1498 if (sequence) { 1499 if (asprintf(&tmp, "%s-%d", str, previous) < 0) { 1500 free(str); 1501 return NULL; 1502 } 1503 free(str); 1504 str = tmp; 1505 } 1506 1507 return str; 1508 } 1509 1510 int 1511 eal_parse_common_option(int opt, const char *optarg, 1512 struct internal_config *conf) 1513 { 1514 static int b_used; 1515 static int a_used; 1516 1517 switch (opt) { 1518 case 'b': 1519 if (a_used) 1520 goto ba_conflict; 1521 if (eal_option_device_add(RTE_DEVTYPE_BLOCKED, optarg) < 0) 1522 return -1; 1523 b_used = 1; 1524 break; 1525 1526 case 'a': 1527 if (b_used) 1528 goto ba_conflict; 1529 if (eal_option_device_add(RTE_DEVTYPE_ALLOWED, optarg) < 0) 1530 return -1; 1531 a_used = 1; 1532 break; 1533 /* coremask */ 1534 case 'c': { 1535 int lcore_indexes[RTE_MAX_LCORE]; 1536 1537 if (eal_service_cores_parsed()) 1538 RTE_LOG(WARNING, EAL, 1539 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n"); 1540 if (eal_parse_coremask(optarg, lcore_indexes) < 0) { 1541 RTE_LOG(ERR, EAL, "invalid coremask syntax\n"); 1542 return -1; 1543 } 1544 if (update_lcore_config(lcore_indexes) < 0) { 1545 char *available = available_cores(); 1546 1547 RTE_LOG(ERR, EAL, 1548 "invalid coremask, please check specified cores are part of %s\n", 1549 available); 1550 free(available); 1551 return -1; 1552 } 1553 1554 if (core_parsed) { 1555 RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n", 1556 (core_parsed == LCORE_OPT_LST) ? "-l" : 1557 (core_parsed == LCORE_OPT_MAP) ? "--lcore" : 1558 "-c"); 1559 return -1; 1560 } 1561 1562 core_parsed = LCORE_OPT_MSK; 1563 break; 1564 } 1565 /* corelist */ 1566 case 'l': { 1567 int lcore_indexes[RTE_MAX_LCORE]; 1568 1569 if (eal_service_cores_parsed()) 1570 RTE_LOG(WARNING, EAL, 1571 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n"); 1572 1573 if (eal_parse_corelist(optarg, lcore_indexes) < 0) { 1574 RTE_LOG(ERR, EAL, "invalid core list syntax\n"); 1575 return -1; 1576 } 1577 if (update_lcore_config(lcore_indexes) < 0) { 1578 char *available = available_cores(); 1579 1580 RTE_LOG(ERR, EAL, 1581 "invalid core list, please check specified cores are part of %s\n", 1582 available); 1583 free(available); 1584 return -1; 1585 } 1586 1587 if (core_parsed) { 1588 RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n", 1589 (core_parsed == LCORE_OPT_MSK) ? "-c" : 1590 (core_parsed == LCORE_OPT_MAP) ? "--lcore" : 1591 "-l"); 1592 return -1; 1593 } 1594 1595 core_parsed = LCORE_OPT_LST; 1596 break; 1597 } 1598 /* service coremask */ 1599 case 's': 1600 if (eal_parse_service_coremask(optarg) < 0) { 1601 RTE_LOG(ERR, EAL, "invalid service coremask\n"); 1602 return -1; 1603 } 1604 break; 1605 /* service corelist */ 1606 case 'S': 1607 if (eal_parse_service_corelist(optarg) < 0) { 1608 RTE_LOG(ERR, EAL, "invalid service core list\n"); 1609 return -1; 1610 } 1611 break; 1612 /* size of memory */ 1613 case 'm': 1614 conf->memory = atoi(optarg); 1615 conf->memory *= 1024ULL; 1616 conf->memory *= 1024ULL; 1617 mem_parsed = 1; 1618 break; 1619 /* force number of channels */ 1620 case 'n': 1621 conf->force_nchannel = atoi(optarg); 1622 if (conf->force_nchannel == 0) { 1623 RTE_LOG(ERR, EAL, "invalid channel number\n"); 1624 return -1; 1625 } 1626 break; 1627 /* force number of ranks */ 1628 case 'r': 1629 conf->force_nrank = atoi(optarg); 1630 if (conf->force_nrank == 0 || 1631 conf->force_nrank > 16) { 1632 RTE_LOG(ERR, EAL, "invalid rank number\n"); 1633 return -1; 1634 } 1635 break; 1636 /* force loading of external driver */ 1637 case 'd': 1638 if (eal_plugin_add(optarg) == -1) 1639 return -1; 1640 break; 1641 case 'v': 1642 /* since message is explicitly requested by user, we 1643 * write message at highest log level so it can always 1644 * be seen 1645 * even if info or warning messages are disabled */ 1646 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version()); 1647 break; 1648 1649 /* long options */ 1650 case OPT_HUGE_UNLINK_NUM: 1651 conf->hugepage_unlink = 1; 1652 break; 1653 1654 case OPT_NO_HUGE_NUM: 1655 conf->no_hugetlbfs = 1; 1656 /* no-huge is legacy mem */ 1657 conf->legacy_mem = 1; 1658 break; 1659 1660 case OPT_NO_PCI_NUM: 1661 conf->no_pci = 1; 1662 break; 1663 1664 case OPT_NO_HPET_NUM: 1665 conf->no_hpet = 1; 1666 break; 1667 1668 case OPT_VMWARE_TSC_MAP_NUM: 1669 conf->vmware_tsc_map = 1; 1670 break; 1671 1672 case OPT_NO_SHCONF_NUM: 1673 conf->no_shconf = 1; 1674 break; 1675 1676 case OPT_IN_MEMORY_NUM: 1677 conf->in_memory = 1; 1678 /* in-memory is a superset of noshconf and huge-unlink */ 1679 conf->no_shconf = 1; 1680 conf->hugepage_unlink = 1; 1681 break; 1682 1683 case OPT_PROC_TYPE_NUM: 1684 conf->process_type = eal_parse_proc_type(optarg); 1685 break; 1686 1687 case OPT_MAIN_LCORE_NUM: 1688 if (eal_parse_main_lcore(optarg) < 0) { 1689 RTE_LOG(ERR, EAL, "invalid parameter for --" 1690 OPT_MAIN_LCORE "\n"); 1691 return -1; 1692 } 1693 break; 1694 1695 case OPT_VDEV_NUM: 1696 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL, 1697 optarg) < 0) { 1698 return -1; 1699 } 1700 break; 1701 1702 #ifndef RTE_EXEC_ENV_WINDOWS 1703 case OPT_SYSLOG_NUM: 1704 if (eal_parse_syslog(optarg, conf) < 0) { 1705 RTE_LOG(ERR, EAL, "invalid parameters for --" 1706 OPT_SYSLOG "\n"); 1707 return -1; 1708 } 1709 break; 1710 #endif 1711 1712 case OPT_LOG_LEVEL_NUM: { 1713 if (eal_parse_log_level(optarg) < 0) { 1714 RTE_LOG(ERR, EAL, 1715 "invalid parameters for --" 1716 OPT_LOG_LEVEL "\n"); 1717 return -1; 1718 } 1719 break; 1720 } 1721 1722 #ifndef RTE_EXEC_ENV_WINDOWS 1723 case OPT_TRACE_NUM: { 1724 if (eal_trace_args_save(optarg) < 0) { 1725 RTE_LOG(ERR, EAL, "invalid parameters for --" 1726 OPT_TRACE "\n"); 1727 return -1; 1728 } 1729 break; 1730 } 1731 1732 case OPT_TRACE_DIR_NUM: { 1733 if (eal_trace_dir_args_save(optarg) < 0) { 1734 RTE_LOG(ERR, EAL, "invalid parameters for --" 1735 OPT_TRACE_DIR "\n"); 1736 return -1; 1737 } 1738 break; 1739 } 1740 1741 case OPT_TRACE_BUF_SIZE_NUM: { 1742 if (eal_trace_bufsz_args_save(optarg) < 0) { 1743 RTE_LOG(ERR, EAL, "invalid parameters for --" 1744 OPT_TRACE_BUF_SIZE "\n"); 1745 return -1; 1746 } 1747 break; 1748 } 1749 1750 case OPT_TRACE_MODE_NUM: { 1751 if (eal_trace_mode_args_save(optarg) < 0) { 1752 RTE_LOG(ERR, EAL, "invalid parameters for --" 1753 OPT_TRACE_MODE "\n"); 1754 return -1; 1755 } 1756 break; 1757 } 1758 #endif /* !RTE_EXEC_ENV_WINDOWS */ 1759 1760 case OPT_LCORES_NUM: 1761 if (eal_parse_lcores(optarg) < 0) { 1762 RTE_LOG(ERR, EAL, "invalid parameter for --" 1763 OPT_LCORES "\n"); 1764 return -1; 1765 } 1766 1767 if (core_parsed) { 1768 RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n", 1769 (core_parsed == LCORE_OPT_LST) ? "-l" : 1770 (core_parsed == LCORE_OPT_MSK) ? "-c" : 1771 "--lcore"); 1772 return -1; 1773 } 1774 1775 core_parsed = LCORE_OPT_MAP; 1776 break; 1777 case OPT_LEGACY_MEM_NUM: 1778 conf->legacy_mem = 1; 1779 break; 1780 case OPT_SINGLE_FILE_SEGMENTS_NUM: 1781 conf->single_file_segments = 1; 1782 break; 1783 case OPT_IOVA_MODE_NUM: 1784 if (eal_parse_iova_mode(optarg) < 0) { 1785 RTE_LOG(ERR, EAL, "invalid parameters for --" 1786 OPT_IOVA_MODE "\n"); 1787 return -1; 1788 } 1789 break; 1790 case OPT_BASE_VIRTADDR_NUM: 1791 if (eal_parse_base_virtaddr(optarg) < 0) { 1792 RTE_LOG(ERR, EAL, "invalid parameter for --" 1793 OPT_BASE_VIRTADDR "\n"); 1794 return -1; 1795 } 1796 break; 1797 case OPT_TELEMETRY_NUM: 1798 break; 1799 case OPT_NO_TELEMETRY_NUM: 1800 conf->no_telemetry = 1; 1801 break; 1802 case OPT_FORCE_MAX_SIMD_BITWIDTH_NUM: 1803 if (eal_parse_simd_bitwidth(optarg) < 0) { 1804 RTE_LOG(ERR, EAL, "invalid parameter for --" 1805 OPT_FORCE_MAX_SIMD_BITWIDTH "\n"); 1806 return -1; 1807 } 1808 break; 1809 1810 /* don't know what to do, leave this to caller */ 1811 default: 1812 return 1; 1813 1814 } 1815 1816 return 0; 1817 1818 ba_conflict: 1819 RTE_LOG(ERR, EAL, 1820 "Options allow (-a) and block (-b) can't be used at the same time\n"); 1821 return -1; 1822 } 1823 1824 static void 1825 eal_auto_detect_cores(struct rte_config *cfg) 1826 { 1827 unsigned int lcore_id; 1828 unsigned int removed = 0; 1829 rte_cpuset_t affinity_set; 1830 1831 if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t), 1832 &affinity_set)) 1833 CPU_ZERO(&affinity_set); 1834 1835 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 1836 if (cfg->lcore_role[lcore_id] == ROLE_RTE && 1837 !CPU_ISSET(lcore_id, &affinity_set)) { 1838 cfg->lcore_role[lcore_id] = ROLE_OFF; 1839 removed++; 1840 } 1841 } 1842 1843 cfg->lcore_count -= removed; 1844 } 1845 1846 static void 1847 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg) 1848 { 1849 rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset; 1850 rte_cpuset_t default_set; 1851 unsigned int lcore_id; 1852 1853 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 1854 if (rte_lcore_has_role(lcore_id, ROLE_OFF)) 1855 continue; 1856 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset); 1857 } 1858 RTE_CPU_NOT(cpuset, cpuset); 1859 1860 if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t), 1861 &default_set)) 1862 CPU_ZERO(&default_set); 1863 1864 RTE_CPU_AND(cpuset, cpuset, &default_set); 1865 1866 /* if no remaining cpu, use main lcore cpu affinity */ 1867 if (!CPU_COUNT(cpuset)) { 1868 memcpy(cpuset, &lcore_config[rte_get_main_lcore()].cpuset, 1869 sizeof(*cpuset)); 1870 } 1871 } 1872 1873 int 1874 eal_cleanup_config(struct internal_config *internal_cfg) 1875 { 1876 if (internal_cfg->hugefile_prefix != NULL) 1877 free(internal_cfg->hugefile_prefix); 1878 if (internal_cfg->hugepage_dir != NULL) 1879 free(internal_cfg->hugepage_dir); 1880 if (internal_cfg->user_mbuf_pool_ops_name != NULL) 1881 free(internal_cfg->user_mbuf_pool_ops_name); 1882 1883 return 0; 1884 } 1885 1886 int 1887 eal_adjust_config(struct internal_config *internal_cfg) 1888 { 1889 int i; 1890 struct rte_config *cfg = rte_eal_get_configuration(); 1891 struct internal_config *internal_conf = 1892 eal_get_internal_configuration(); 1893 1894 if (!core_parsed) 1895 eal_auto_detect_cores(cfg); 1896 1897 if (internal_conf->process_type == RTE_PROC_AUTO) 1898 internal_conf->process_type = eal_proc_type_detect(); 1899 1900 /* default main lcore is the first one */ 1901 if (!main_lcore_parsed) { 1902 cfg->main_lcore = rte_get_next_lcore(-1, 0, 0); 1903 if (cfg->main_lcore >= RTE_MAX_LCORE) 1904 return -1; 1905 lcore_config[cfg->main_lcore].core_role = ROLE_RTE; 1906 } 1907 1908 compute_ctrl_threads_cpuset(internal_cfg); 1909 1910 /* if no memory amounts were requested, this will result in 0 and 1911 * will be overridden later, right after eal_hugepage_info_init() */ 1912 for (i = 0; i < RTE_MAX_NUMA_NODES; i++) 1913 internal_cfg->memory += internal_cfg->socket_mem[i]; 1914 1915 return 0; 1916 } 1917 1918 int 1919 eal_check_common_options(struct internal_config *internal_cfg) 1920 { 1921 struct rte_config *cfg = rte_eal_get_configuration(); 1922 const struct internal_config *internal_conf = 1923 eal_get_internal_configuration(); 1924 1925 if (cfg->lcore_role[cfg->main_lcore] != ROLE_RTE) { 1926 RTE_LOG(ERR, EAL, "Main lcore is not enabled for DPDK\n"); 1927 return -1; 1928 } 1929 1930 if (internal_cfg->process_type == RTE_PROC_INVALID) { 1931 RTE_LOG(ERR, EAL, "Invalid process type specified\n"); 1932 return -1; 1933 } 1934 if (internal_cfg->hugefile_prefix != NULL && 1935 strlen(internal_cfg->hugefile_prefix) < 1) { 1936 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n"); 1937 return -1; 1938 } 1939 if (internal_cfg->hugepage_dir != NULL && 1940 strlen(internal_cfg->hugepage_dir) < 1) { 1941 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n"); 1942 return -1; 1943 } 1944 if (internal_cfg->user_mbuf_pool_ops_name != NULL && 1945 strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) { 1946 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n"); 1947 return -1; 1948 } 1949 if (strchr(eal_get_hugefile_prefix(), '%') != NULL) { 1950 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" " 1951 "option\n"); 1952 return -1; 1953 } 1954 if (mem_parsed && internal_cfg->force_sockets == 1) { 1955 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot " 1956 "be specified at the same time\n"); 1957 return -1; 1958 } 1959 if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) { 1960 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot " 1961 "be specified together with --"OPT_NO_HUGE"\n"); 1962 return -1; 1963 } 1964 if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink && 1965 !internal_cfg->in_memory) { 1966 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot " 1967 "be specified together with --"OPT_NO_HUGE"\n"); 1968 return -1; 1969 } 1970 if (internal_conf->force_socket_limits && internal_conf->legacy_mem) { 1971 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT 1972 " is only supported in non-legacy memory mode\n"); 1973 } 1974 if (internal_cfg->single_file_segments && 1975 internal_cfg->hugepage_unlink && 1976 !internal_cfg->in_memory) { 1977 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is " 1978 "not compatible with --"OPT_HUGE_UNLINK"\n"); 1979 return -1; 1980 } 1981 if (internal_cfg->legacy_mem && 1982 internal_cfg->in_memory) { 1983 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible " 1984 "with --"OPT_IN_MEMORY"\n"); 1985 return -1; 1986 } 1987 if (internal_cfg->legacy_mem && internal_cfg->match_allocations) { 1988 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible " 1989 "with --"OPT_MATCH_ALLOCATIONS"\n"); 1990 return -1; 1991 } 1992 if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) { 1993 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible " 1994 "with --"OPT_MATCH_ALLOCATIONS"\n"); 1995 return -1; 1996 } 1997 if (internal_cfg->legacy_mem && internal_cfg->memory == 0) { 1998 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, " 1999 "amount of reserved memory can be adjusted with " 2000 "-m or --"OPT_SOCKET_MEM"\n"); 2001 } 2002 2003 return 0; 2004 } 2005 2006 uint16_t 2007 rte_vect_get_max_simd_bitwidth(void) 2008 { 2009 const struct internal_config *internal_conf = 2010 eal_get_internal_configuration(); 2011 return internal_conf->max_simd_bitwidth.bitwidth; 2012 } 2013 2014 int 2015 rte_vect_set_max_simd_bitwidth(uint16_t bitwidth) 2016 { 2017 struct internal_config *internal_conf = 2018 eal_get_internal_configuration(); 2019 if (internal_conf->max_simd_bitwidth.forced) { 2020 RTE_LOG(NOTICE, EAL, "Cannot set max SIMD bitwidth - user runtime override enabled"); 2021 return -EPERM; 2022 } 2023 2024 if (bitwidth < RTE_VECT_SIMD_DISABLED || !rte_is_power_of_2(bitwidth)) { 2025 RTE_LOG(ERR, EAL, "Invalid bitwidth value!\n"); 2026 return -EINVAL; 2027 } 2028 internal_conf->max_simd_bitwidth.bitwidth = bitwidth; 2029 return 0; 2030 } 2031 2032 void 2033 eal_common_usage(void) 2034 { 2035 printf("[options]\n\n" 2036 "EAL common options:\n" 2037 " -c COREMASK Hexadecimal bitmask of cores to run on\n" 2038 " -l CORELIST List of cores to run on\n" 2039 " The argument format is <c1>[-c2][,c3[-c4],...]\n" 2040 " where c1, c2, etc are core indexes between 0 and %d\n" 2041 " --"OPT_LCORES" COREMAP Map lcore set to physical cpu set\n" 2042 " The argument format is\n" 2043 " '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n" 2044 " lcores and cpus list are grouped by '(' and ')'\n" 2045 " Within the group, '-' is used for range separator,\n" 2046 " ',' is used for single number separator.\n" 2047 " '( )' can be omitted for single element group,\n" 2048 " '@' can be omitted if cpus and lcores have the same value\n" 2049 " -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n" 2050 " --"OPT_MAIN_LCORE" ID Core ID that is used as main\n" 2051 " --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n" 2052 " -n CHANNELS Number of memory channels\n" 2053 " -m MB Memory to allocate (see also --"OPT_SOCKET_MEM")\n" 2054 " -r RANKS Force number of memory ranks (don't detect)\n" 2055 " -b, --block Add a device to the blocked list.\n" 2056 " Prevent EAL from using this device. The argument\n" 2057 " format for PCI devices is <domain:bus:devid.func>.\n" 2058 " -a, --allow Add a device to the allow list.\n" 2059 " Only use the specified devices. The argument format\n" 2060 " for PCI devices is <[domain:]bus:devid.func>.\n" 2061 " This option can be present several times.\n" 2062 " [NOTE: " OPT_DEV_ALLOW " cannot be used with "OPT_DEV_BLOCK" option]\n" 2063 " --"OPT_VDEV" Add a virtual device.\n" 2064 " The argument format is <driver><id>[,key=val,...]\n" 2065 " (ex: --vdev=net_pcap0,iface=eth2).\n" 2066 " --"OPT_IOVA_MODE" Set IOVA mode. 'pa' for IOVA_PA\n" 2067 " 'va' for IOVA_VA\n" 2068 " -d LIB.so|DIR Add a driver or driver directory\n" 2069 " (can be used multiple times)\n" 2070 " --"OPT_VMWARE_TSC_MAP" Use VMware TSC map instead of native RDTSC\n" 2071 " --"OPT_PROC_TYPE" Type of this process (primary|secondary|auto)\n" 2072 #ifndef RTE_EXEC_ENV_WINDOWS 2073 " --"OPT_SYSLOG" Set syslog facility\n" 2074 #endif 2075 " --"OPT_LOG_LEVEL"=<level> Set global log level\n" 2076 " --"OPT_LOG_LEVEL"=<type-match>:<level>\n" 2077 " Set specific log level\n" 2078 " --"OPT_LOG_LEVEL"=help Show log types and levels\n" 2079 #ifndef RTE_EXEC_ENV_WINDOWS 2080 " --"OPT_TRACE"=<regex-match>\n" 2081 " Enable trace based on regular expression trace name.\n" 2082 " By default, the trace is disabled.\n" 2083 " User must specify this option to enable trace.\n" 2084 " --"OPT_TRACE_DIR"=<directory path>\n" 2085 " Specify trace directory for trace output.\n" 2086 " By default, trace output will created at\n" 2087 " $HOME directory and parameter must be\n" 2088 " specified once only.\n" 2089 " --"OPT_TRACE_BUF_SIZE"=<int>\n" 2090 " Specify maximum size of allocated memory\n" 2091 " for trace output for each thread. Valid\n" 2092 " unit can be either 'B|K|M' for 'Bytes',\n" 2093 " 'KBytes' and 'MBytes' respectively.\n" 2094 " Default is 1MB and parameter must be\n" 2095 " specified once only.\n" 2096 " --"OPT_TRACE_MODE"=<o[verwrite] | d[iscard]>\n" 2097 " Specify the mode of update of trace\n" 2098 " output file. Either update on a file can\n" 2099 " be wrapped or discarded when file size\n" 2100 " reaches its maximum limit.\n" 2101 " Default mode is 'overwrite' and parameter\n" 2102 " must be specified once only.\n" 2103 #endif /* !RTE_EXEC_ENV_WINDOWS */ 2104 " -v Display version information on startup\n" 2105 " -h, --help This help\n" 2106 " --"OPT_IN_MEMORY" Operate entirely in memory. This will\n" 2107 " disable secondary process support\n" 2108 " --"OPT_BASE_VIRTADDR" Base virtual address\n" 2109 " --"OPT_TELEMETRY" Enable telemetry support (on by default)\n" 2110 " --"OPT_NO_TELEMETRY" Disable telemetry support\n" 2111 " --"OPT_FORCE_MAX_SIMD_BITWIDTH" Force the max SIMD bitwidth\n" 2112 "\nEAL options for DEBUG use only:\n" 2113 " --"OPT_HUGE_UNLINK" Unlink hugepage files after init\n" 2114 " --"OPT_NO_HUGE" Use malloc instead of hugetlbfs\n" 2115 " --"OPT_NO_PCI" Disable PCI\n" 2116 " --"OPT_NO_HPET" Disable HPET\n" 2117 " --"OPT_NO_SHCONF" No shared config (mmap'd files)\n" 2118 "\n", RTE_MAX_LCORE); 2119 } 2120